<template>
    <panel-head :route= "route" />
    <div class="btns">
        <el-button :icon="Plus" type="primary" @click="open(null)"size="small">打开</el-button>
    </div>
   
    <el-table :data="tableData.list" style="width:100%">
        <el-table-column prop="id" label="id" />
        <el-table-column prop="name" label="昵称" />
        <el-table-column prop="permissionName" label="菜单权限" width="500px" />
        <el-table-column label="操作">
         <template #default="scope">
            <el-button type="primary" @click="open(scope.row)">编辑</el-button>

        </template>
</el-table-column> 
</el-table>
<div class="pagination-info">
    <el-pagination
v-model:currentPage="paginationData.pageNum"
      :page-size="paginationData.pageSize"
      :background="false"
      size="small"
      layout="total,prev,pager,next"
      :total="tableData.total"
       @size-change="handleSizeChange"
       @current-change="handleCurrentChange">
    </el-pagination>
</div>

<el-dialog v-model="dialogFormVisable" :before-close="beforeClose" title="添加权限" width="500">

    <el-form ref="formRef" label-width="100px" label-position="left" :model="form" :rules="rules">
        <el-form-item v-show="false" prop="id">
            <el-input v-model="form.id" />
        </el-form-item>

        <el-form-item label="名称" prop="name">
            <el-input v-model="form.name" placeholder="请填写权限名称" />
        </el-form-item>

        <el-form-item label="权限" prop="permissions">
            <el-tree ref="treeRef" style="max-width:600px;" :data="permissionData" node-key="id" show-checkbox
                :default-checked-keys="defaultKeys" :default-expanded-keys="[2]" />


        </el-form-item>
    </el-form>
        <template #footer>
                <div class="dialog-footer">
                    <el-button type="primary"@click="confirm(formRef)">确认</el-button>
                </div>
            </template> 
</el-dialog>

</template>

<script setup>
import { ref, reactive } from 'vue'
import { userGetMenu, userSetMenu, menuList } from '../../../api'
import { onMounted } from 'vue'
import { nextTick } from 'vue'
import {Plus} from "@element-plus/icons-vue"
import { useRoute } from 'vue-router'

const route = useRoute()
onMounted(() => {
    //菜单数据
    userGetMenu().then(({ data }) => {
        console.log(data)
        permissionData.value = data.data
    })
    getListData()
})

//列表数据
const tableData = reactive({
    list:[],
    total:0 
})

//打开弹窗
const open = (rowData = {}) => {
    dialogFormVisable.value = true
    //弹窗打开form生成是异步的
    nextTick(() => {
        if (rowData) {
            Object.assign(form, { id: rowData.id, name: rowData.name })
            treeRef.value.setCheckedKeys(rowData.permission)
        }
    })
}
const paginationData = reactive({
    id: '',
    pageNum: 1,
    pageSize: 10
})

const handleSizeChange=(val)=>{
    paginationData.pageSize = val
    getListData()
}
const handleCurrentChange=(val)=>{
    paginationData.pageNum = val
    getListData()
 }
//请求列表数据  
const getListData = () => {
    menuList(paginationData).then(({ data }) => {
        const{list,total} =data.data
        tableData.list = list
        tableData.total =total
    })
}

const formRef = ref()
//form的数据
const form = reactive({
    id: '',
    name: '',
    permissions: ''
})

//树形菜单权限数据
const permissionData = ref([])
//弹窗的显示隐藏
const dialogFormVisable = ref(false)
//关闭弹窗的回调
const beforeClose = () => {
    dialogFormVisable.value = false
    //重置表单
    formRef.value.resetFields()
    //tree选择重置
    treeRef.value.setCheckedKeys(defaultKeys)
}
//选中权限
const defaultKeys = [4, 5]
const treeRef = ref()

const rules = reactive({
    name: [{ required: true, trigger: 'blur', message: '请输入权限名称' }]
})
//表单提交
const confirm = async (formEl) => {
    if (!formEl) return
    await formEl.validate((vaild, fields) => {
        if (vaild) {
            //获取到选择的checkbox数据 
            const permissions = JSON.stringify(treeRef.value.getCheckedKeys())
            userSetMenu({ name: form.name, permissions, id: form.id }).then(({ data }) => {
              beforeClose()
              getListData()
            })
        } else {
            console.log('error submit!', fields)
        }
    })
}
</script>
<style lang="less" scoped>
.btns{
    padding: 10px 0 10px 10px;
    background-color: #fff;

}
</style>